Prosper-René Blondlot

Prosper-René Blondlot (1849–1930) was a French physicist best known for his work in the field of optics and his controversial discovery of what he called "N-rays" in the early 20th century. Blondlot claimed that N-rays were a form of electromagnetic radiation that could be detected by specialized instruments and had various physiological effects. His experiments suggested that N-rays could be emitted by certain materials and even living organisms.